System of robust noise monitoring of anomalous seismic processes

• Published in: Soil dynamics and earthquake engineering (1984) Vol. 53; pp. 11 - 25
• Main Authors: Aliev, T.A., Abbasov, A.M., Guluyev, Q.A., Pashaev, F.H., Sattarova, U.E.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.10.2013
• Subjects: Dynamics; Earthquake construction; Earthquake engineering; Monitoring; Noise; Seismic phenomena; Signal processing; Stations; Azerbaijan; Eurasia, Caspian Sea
• ISSN: 0267-7261; 1879-341X
• DOI: 10.1016/j.soildyn.2012.12.013

Robust noise technology is presented for the analysis of seismic-acoustic signals, which allows the use of noise in the signal as a carrier of information at the start of anomalous seismic processes preceding earthquakes. A station has been built based on this technology, which receives seismic-acoustic noises from the deep strata of the earth by means of 3–6km deep steel bores suspended in oil wells, performing monitoring of the beginning of the latent period of earthquake formation. Experiments carried out at stations at Qum Island in the Caspian Sea since 01.05.2010 and in the town of Shirvan in the south of Azerbaijan since 20.11.2011 have proven the reliability and adequacy of results when monitoring and identifying earthquakes within a radius of 300–500km, 10–15h before the earthquakes are detected by standard seismic stations. ► Estimates of noise is used for monitoring of ASP. ► System allows improving the adequacy of monitoring, diagnostics, etc. ► System allows getting information on coming earthquakes over 10 hours in advance. ► System allows indication the volcanic eruption over 10 hours.